How do you solve for the inverse of the following polynomial function?
f(x)= 1000x^3 - 600x^2 + 120x. I need it step by step because I'm really confused. Thanks for your help!
2. I've found a point of inflection with a horizontal tangent at
- the function is increasing monotically and must have an increasing inverse function.
- the function can be re-written as
Expand this term and compare it with original term of the function. You'll get a = 1000.
3. Swap the x and y variables in the equation of the function to get the inverse:
Solve for y. I've got: